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SL-FL73 BS 476-7 Surface Spread Flame Tester

Name: SL-FL73 BS 476-7 Surface Spread Flame Tester
Brand: SKYLINE INSTRUMENTS CO.,LTD
SKU: SL-FL73
Price: 4,500.00 USD
Availability: InStock

Brand Name:	SKYLINE
Model Number:	SL-FL73
MOQ:	1 unit
Price:	negotiated
Payment Terms:	T/T, L/C, Western Union,
Supply Ability:	1 unit/ month

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

SKYLINE:

Surface Spread Flame Tester

Standard:

BS 476-7

Heat Flux Meter:

Range : 0 ~ 50 Kw/m2

Surface Emissivity:

ɛ=0.95±0.05

Dimension:

1220 Mm (W) X 550 Mm (D) X 1920 Mm (H)

Weight:

210kg

Packaging Details:

plywood case

Supply Ability:

1 unit/ month

Highlight:

BS 476-7 flame tester

surface spread flame tester

flammability testing equipment with warranty

Product Description

SL-FL73 BS 476-7 Surface Spread Flame Tester

Unlock faster, more reliable fire safety certification for your wall and ceiling linings with the SL‑FL73 - the ultimate solution for BS 476‑7 surface spread flame testing.

Product Overview

The SL‑FL73 Surface Spread Flame Tester is a reaction‑to‑fire test system designed for wall and ceiling lining materials, measuring the lateral spread of flame along the surface of vertically oriented specimens under opposed flow conditions. It is used to evaluate building materials such as wallboards, ceiling panels, composite materials, and insulation linings for fire safety classification, providing essential data on flame propagation behaviour and surface spread rating.

Key Features

Radiant panel - 850 mm × 850 mm porous refractory burner block, operating at ~800 °C, with automatic gas shut‑off when de‑energised
Specimen holder - Water‑cooled steel frame with water‑cooled face plates overlapping the specimen by 20 ± 2 mm on top, bottom, and panel-adjacent edge
Pilot flame - Steel tube pilot burner with spark ignition, mounted beside the apparatus
Gas & air supply - Includes flow meters, pressure regulators, control valves, and safety devices
Calibration - Perforated calibration plate and thermal flux sensor (range 0-50 kW/m², ε = 0.95 ± 0.05)
Control system - PLC with human‑machine interface for real‑time monitoring and test parameter control

Standards Compliance

BS 476‑7: Fire tests on building materials and structures -- Method of test to determine the classification of the surface spread of flame of products.

Applications

Wall and ceiling linings (wallboards, decorative panels, ceiling tiles)
Composite materials and assemblies used as exposed surfaces
Thermal insulation linings for walls and ceilings
Fire classification under BS 476‑7 (Class 1-4, and Class 0 for combined requirements)

Frequently Asked Questions

What standard does the SL‑FL73 comply with, and what does it measure?

It complies with BS 476‑7. It measures lateral flame spread along the vertical surface of a product under radiant heat and assigns a classification (Class 1 to 4) based on spread rate and distance.

Which materials can be tested, and what are the key specifications?

Wallboards, ceiling panels, decorative sheets, composites, and insulation linings. Key specs: 850×850 mm radiant panel (~800 °C), heat flux meter 0-50 kW/m² (ε=0.95), water‑cooled specimen holder, PLC control.

How accurate and repeatable are the results?

High accuracy is achieved through the porous refractory burner, stable gas/air control, and calibration with a reference flux sensor and perforated plate. The water‑cooled holder maintains consistent thermal conditions, and the hinged positioning ensures repeatable specimen placement.

Is the operation easy?

Yes. Spark ignition, spring‑loaded clamping, and PLC/HMI allow simple specimen mounting and automated test execution. Parameters are set on the interface, and real‑time data is displayed.

What are the installation requirements?

Install in a room at 10-35 °C with no draughts. Power: 230 V, 10 A. Gas: propane and compressed air. Test room volume: 400 m³. Maintenance includes regular cleaning of the radiant panel and routine calibration checks.

How does the classification system work?

Based on flame spread distance at 1.5 minutes and at the end of the test: Class 1 (lowest spread) to Class 4 (highest risk). Class 0 is a composite rating requiring Class 1 plus non‑combustibility.

After-Sales Service & Technical Support

One-year after-sales support, lifetime technical assistance
Equipment installation and calibration
Calibration services
Support for the development of testing methods
Technical training

Contact Information

To obtain the complete technical specifications, a quote, or to schedule a demonstration, please contact our sales team or authorized dealers. We will provide you with professional and prompt technical support and services.

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SL-FL73 BS 476-7 Surface Spread Flame Tester

SL-FL73 BS 476-7 Surface Spread Flame Tester

BS 476-7 flame tester

surface spread flame tester

flammability testing equipment with warranty